Effects of barium substitution on the optical and electrical properties of PLZT transparent electro-optical ceramics
Effects of barium substitution on the optical and electrical properties of PLZT transparent electro-optical ceramics
复制标题
钡替代对PLZT透明电光陶瓷光电性能的影响
DOI：
10.1016/j.ceramint.2019.06.005
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发表时间：
2019-10
影响因子：
5.2
通讯作者：
He Xiyun
中科院分区：
文献类型：
--
作者：
Xu Zhewei;Zeng Xia;Cao Zhaodong;Ling Liang;Qiu Pingsun;He Xiyun
采用热压烧结法制备了a位钡代铅量为0、0.01、0.02、0.04的透明电光陶瓷Pb0.91-xLa0.09Bax(Zr0.65Ti0.35) 0.97750 o3 （PLBZTx/9/65/35）。系统研究了钡取代对材料微观结构、铁电性能、介电性能、光学性能和电光双折射性能的影响。XRD结果显示为典型的abo3钙钛矿结构，在检测限内未观察到第二相，说明了Ba2+离子进入PLZT导致晶格膨胀的原因。由于a位Pb2+、Ba2+和La3+的混合离子效应，矫顽力场（Ec）和残余极化（Pr）均随掺杂量的增加而减小。随着钡改性量的增加，介电最大值温度（Tm）几乎呈线性降低。特别是观察到铁电迟滞的减小，这可能为解决目前器件设计中面临的问题提供了一种新的方法。总之，易于调谐的窄磁滞回线可能证明PLBZT是光调制器，光开关，储能和其他相关应用的有希望的候选者。
Transparent electro-optic (EO) ceramics Pb0.91-xLa0.09Bax(Zr0.65Ti0.35)0.9775O3(PLBZTx/9/65/35) with the amount ofx= 0, 0.01, 0.02, 0.04 barium substitution for Pb at A-site were fabricated by hot pressing sintering process. The effects of barium substitution on the micro structure, ferroelectric, dielectric, optical and electro-optic birefringence properties were systematically studied. XRD result shows a typical ABO3perovskite structure and no second phase observed within the detection limit, which clarifies the entry of Ba2+ions into PLZT that caused the expansion of the crystal lattice. Due to the mixing ion effect of Pb2+, Ba2+and La3+at A-site, both coercive field (Ec) and remnant polarization (Pr) show reducing tendency with increasing doping. And the temperature of the dielectric maximum (Tm) was decreased almost linearly with increasing barium modifying amount. Especially, the reduction of the ferroelectric hysteresis was observed, which may reveal the Ba doping a new method to solve the problems faced now in device designing. In summary, the easily tunedTmand slim hysteresis loop may prove PLBZT a promising candidate for optical modulator, light switch, energy storage and other relevant applications.
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DOI：
10.1002/pssa.200521322
发表时间：
2006-06
期刊：
physica status solidi (a)
影响因子：
--
作者：
Ramam Koduri;Luis Salinas Hermosilla
通讯作者：
Ramam Koduri;Luis Salinas Hermosilla
影响因子：
5.7
作者：
Mário R Pereira;A. G. Peixoto;M. Gomes
通讯作者：
Mário R Pereira;A. G. Peixoto;M. Gomes
影响因子：
1.6
作者：
S. C. Panigrahi;P. Das;R. Choudhary
通讯作者：
S. C. Panigrahi;P. Das;R. Choudhary
影响因子：
4.5
作者：
R. Nasar;M. Cerqueira;Elson Longo;Edson R. Leite;Á. Varela;A. Beltrán;Juan Andrés
通讯作者：
R. Nasar;M. Cerqueira;Elson Longo;Edson R. Leite;Á. Varela;A. Beltrán;Juan Andrés
影响因子：
3.2
作者：
Svarcova, Silvie;Wiik, Kjell;Grande, Tor
通讯作者：
Grande, Tor